252 BOTANICAL GAZETTE [OCTOBER 
ous, slender, simple, puberulent, 10-18 cm. high, very leafy: 
leaves entire, oblong or ovate-lanceolate, subacute, rather thick, 
obscurely puberulent or nearly glabrous, 12-25 mm. long, usually 
much exceeding the internodes, tapering into a short petiole: head 
of flowers close, 15-20 mm. high and about as broad; involucral 
bracts in two rows, the outer only slightly shorter, all obovate: 
calyx tube about 1o mm. long, minutely hirsute; the small tri- 
angular teeth softly hirsute: corolla tube minutely pubescent, 
distinctly exceeding the calyx, its linear purple lobes about half 
as long as the tube. 
GREENE’s argument (Leaflets 1:168) for discarding the name Monardella 
seems convincing; therefore, I transfer two most excellent species. The above 
is re-characterized in the light of Macsripe’s perfect specimens from Silver 
City, in the Owyhee Mountains, no. 434, growing in granite soils. 
Madronella parvifolia (Greene), n. comb.—Monardella parvi- 
folia Greene, Pl. Baker. 3:22. 1901; appearing in CouLTER and 
Netson’s Manual as Monardella parviflora, a slip in copying. 
LITHOSPERUM RUDERALE lanceolatum, n. comb.—L. lanceolatum 
Rydb., Mem. N.Y. Bot. Gard. 1: 233. 1900. 
There can be little doubt that Prrer is right (Contrib. U.S. Nat. Herb. 
11:486. 1906) in replacing L. pilosum Nutt. by L. ruderale Dougl.; but not 
in reducing L. lanceolatum to complete synonomy. RYyDBERG’s name probably 
should be retained as representing a recognizable variety. The characters 
on which he relied to separate it specifically from its nearest ally, L. pilosum, 
are characters of degree, mainly size. This character may so readily be ac- 
counted for by environment that one is not justified in giving more than varietal 
significance to it. In the light of most remarkable specimens of this variety 
secured by MAcBRIDE at Big Willow, Canyon Co., no. 110, the salient char- 
acters may be restated as follows: 
Stems very numerous, stout 4-6dm. high: the inflorescence 
paniculately branched, sepals elongating and surpassing the very 
large nutlets, which are distinctly keeled and provided with a 
conspicuous flaring white polished collar bordering the broad con- 
cave basal scar. 
Pentstemon Macbridei, n. sp.—Caudex woody, subterranean: 
stems several to many from each of the few crowns of the caudex, 
puberulent, slender, simple, erect, closely and equably leafy, 
1-3 dm. long exclusive of the ample inflorescence: leaves puberu- 
